Finding the Third Proportional to 160.42 and 320.52

Step by Step Solution

1. Step 1: Write the proportion equation
   160.42 : 320.52 = 320.52 : x
2. Step 2: Convert to fraction form
   160.42/320.52 = 320.52/x
3. Step 3: Cross multiply
   160.42x = 320.52 × 320.52
4. Step 4: Simplify right side
   160.42x = 102,732.77
5. Step 5: Solve for x
   x = 102,732.77/160.42
6. Step 6: Final answer
   x = 640.41